SIMULATIONS OF FRACTURE IN CONCRETE BEAMS UNDER BENDING USING A CONTINUUM AND DISCRETE APPROACH - Publication - Bridge of Knowledge

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SIMULATIONS OF FRACTURE IN CONCRETE BEAMS UNDER BENDING USING A CONTINUUM AND DISCRETE APPROACH

Abstract

The paper describes two-dimensional meso-scale results of fracture in notched concrete beams under bending. Concrete was modelled as a random heterogeneous 4-phase material composed of aggregate particles, cement matrix, interfacial transitional zones and air voids. Within continuum mechanics, the simulations were carried out with the finite element method based on a isotropic damage constitutive model enhanced by a characteristic length of micro-structure. In addition, the discrete element method was used. The concrete micro- structure in calculations was directly taken from real concrete specimens based on 3D x-ray micro-computed tomography images and 2D images by the scanning electron microscope.

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Category:
Conference activity
Type:
materiały konferencyjne indeksowane w Web of Science
Title of issue:
XIII International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2015 strony 1065 - 1076
Language:
English
Publication year:
2015
Bibliographic description:
Nitka M., Skarżyński Ł., Tejchman-Konarzewski A..: SIMULATIONS OF FRACTURE IN CONCRETE BEAMS UNDER BENDING USING A CONTINUUM AND DISCRETE APPROACH, W: XIII International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2015 , 2015, International Center for Numerical Methods in Engineering (CIMNE) Barcelona, Spain,.
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Gdańsk University of Technology

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